Cotton-gin.



Patnted July 24, 1917.

SUTTON GIN. APPLICATION FILED MN. 3, 191?.

.1. F. HUPPER, G. B. SIEPHENS d H. F.YOUNG.

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JAMES F. HOPPER, GEORGE B, STEPHENS, AINE HARRY F. YOUNG, OF SHERMAN, TEXAS.

COTTON-GIN.

Specification of Letters Patent.

Patented July 2l, i917.

Application led January 3, 1917. Serial No. 140,450.

To ZZ whom t 'may concern.'

Be it known that we, JAMES F. Horrnn, (i'rEoncE B. STEPHENS, and HARRY F. YOUNG, citizens of the United States, residing at Sherman, in the county of Grayson and titate of Texas, have invented certain new and useful Improvements in Cotton-Gins, of which the following is a specification.

This invention relates to certain new and useful improvements in air blast apparatus of the class described for cleaning the lint from the saws of cotton gins and in a more effectual manner than by the use of brushes, and it relates particularly to .improvements in the air blast mechanism. In order for machines of this type to work satisfactorily, it is found necessary that the nozzles or other devices for conducting the air blast to the saw teeth should not extend between the gin saws, as the lint will invariably adhere and accumulate upon any such members, no matter how highly polished, and soon render the cleaning method inoperative. To this end a cleaning mechanism comprising pneu matic means for removing the `lint from the saws must be entirelyy out of the path of the travel of the lint as removed by the saw teeth so as to insure the unobstructed force of the air blast divergently in the direction of the moving saw.

ln the machines briefly alluded to above, the devices which act to remove lint from the saws are usually nozzles of various forms placed between adjacent gin saws. While such devices briefly act under ordinary conditions in a fairly satisfactory manner, it is found that lint rapidly accumulates on the nozzles so arranged by contact therewith and the cleaning device thereby is soon rendered inoperative or at least incapable of satisfactory operation. To overcome this objection we have devised as part of our cleaning mechanism, nozzles similarly located with respect to the travel of the saws, but entirely outside of the peripheries thereof, and we also provide an auxiliary set of ribs between the saws, located on the side opposite to the ginning ribs against which the blast from the nozzles impinge and is properly directed for removing lint from the saws.

Uur improved device, as a whole, therefore, comprises essentially the locating of expanding air blast nozzles outside the pe ripheries of gin saws, and also in locating beneath the outlets of the nozzles a series of segmental air defledting ribs. The invention likewise comprehends certain details of construction, all of which will be fully set forth hereinafter.

In the accompanying drawing-Figure l is a vertical cross-section through a cotton gin embodying our invention. Fig. 2'is an enlarged end view of a saw cylinder, an air deecting rib located thereon and a sectional view of the air feeder pipe with nozzle &c. Fig. 3 is a front view of a portion of a saw cylinder, showing the compressed air feeder pipe adjacent thereto, and the numerous auxiliary ribs between the saws. Fig. l is an edge view of one of the auxiliary ribs, Fig. 5 a plan view of the same, and Fig. 6 is a detail view partly in section of one of the numerous nozzles.

Referring now to the drawing, l indicates the saws carried by the usual mandrel 2, which is supported on the end frames of the gin, the frames being connected by longitudinal bars or sides 3. An air-chamber 4, preferably of sheet metal and approximately rectangular in cross section connects with a source kof air under pressure through a tube 5 and is carried by the supporting frame, substantially parallel to the gang of saws. It acts as a distributing means to conduct the air pressure through the plurality of downwardly disposed nozzles 6 partly located therein, to the gin saws, and has integral flanges 7 at both ends provided with slotted apertures 8 for its vertical adjustment. The bottom side of the chamber l is preferably inclined downwardly from the nozzles 6 providing a receptacle for sand or other foreign matter entering the chamber with the air supplied by the tube 5, and in a measure preventing the same from entering and clogging the nozzles. The nozzles 6 are vertically arranged at short intervals across the entire width of the interior of the gin, the air blast is discharged therefrom through the expanded ends thereof in a direction substantially parallel to a plane tangent to the peripheries of the saws. The arrangement is such that a nozzle is located to dis-I charge between the blades of each adjacent pair of saws in the gang, the opening of the nozzle being above the saw teeth as clearly shown in Fig. 2..

Instead of the air blast from the nozzles beingA allowed to expand and be weakened in eective force by discharging inthe usual openings between the spacing blocks 9 and the peripheries of the saws, auxiliary ribs 10 are placed between all the saws and rigidly secured to a transverse bar 11 in the gin frame. The ribs l0 are curved radially, conforming approximately to the periphery of the gin saws, their outer curved surfaces are located slightly below the throat of the saw teeth and they extend downwardly in this manner from a point above the outlet of the nozzles to their outwardly extended exits from between said saws, where they are supported by the bar ll. Formed in the outer face of the ribs l0 and extending downwardly and lengthwise thereof are shallow elongated dishedy portions 12, and located therein are laterally projecting inverted V shaped deflect ing :members 13 adapted to divide the blast from each nozzle and direct it against the adjacent sawY blades.

f A sheet metal guard lll is secured to the front side of the air chamber 4, it is the length thereof and extends slightly below the outlets of the nozzles 6, and is intended to shield the nozzles from lint that other# wise might accumulate upon them.

Supported by the frames of the gin is an olf-take chute 15, having its receiving opening located to receive the lint charged air blast from the nozzles, and through which chute it passes to a condenser, kconveyer or other receptacle.

Having thus described our invention, what V,shield secured to the front side ofthe chamber and extending slightly below the nozzle outlets, and segmental air obstructing` and directing ribs mounted between the respective gin saws, for the purpose set forth. y

Q. A gin for cotton, comprising a gin frame, gin saws mounted therein, a chamber having an inclined bottom, means to create an air pressure in said chamber passing it through vertically disposed expanding nozzles from the chamber to the saws, a shieldv secured to the front side of the chamber and extending slightly below the nozzle outlets, and a series of segmental air obstructing and 'diverting ribs mounted between the respective gin saws, an elongated dished portion in the outer face of said ribs beneath the nozzles, and a raised inverted V shaped deflector in the dished portions, substantially as described.

In testimony whereof we aiiix our signatures in the presence of two witnesses.

JAMES F. HOPPER. GEORGE B. STEPHENS. HARRY F. YOUNG.

Witnesses MARGARET VERUM, lV. H. ENGMAN.

Copies' ofl this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

